Ummmm, the germs come from inside you, not the toothbrush.This is the world’s priciest toothbrush - a titanium ‘plaque destroyer’ with detachable bristle heads which costs an eye-watering £2,600.The Reinast brush has, according to its makers, a special antibacterial protective layer which guards against germs.
And you can't get rid of them all...
Baking soda seems to be the most effective way to control them, and it costs a dollar a box.